Scholarlink

<p>This paper presents a visible light communication (VLC) prototype that repurposes commercially available off-the-shelf LED bulbs to provide both illumination and Internet connectivity. The system is implemented on a BeagleBone Black single-board computer, integrating a Linux-based network driver with a software-defined VLC transceiver and a custom analog front-end. In terms of architecture, it comprises a TCP/IP-compatible network protocol interface, programmable real-time unit-based baseband processing, and visible light transmission and reception using intensity modulation with direct detection. Experimental validation was conducted to evaluate the feasibility of this low-cost VLC system, which simultaneously provides illumination and data communication. The measured bandwidth corresponds to a physical-layer limit in the sub-hundred-kHz range, while loop-back testing confirmed stable IP packet delivery at a net data rate of approximately a few kbit/s. The results indicate a viable approach for simple signaling or short text exchanges in IoT-oriented scenarios, while offering cost-effective VLC deployment without altering existing lighting fixtures.</p>

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Seamlessly integrating LED bulbs with internet connectivity

  • 期刊论文

  • 发表日期：

    2025年12月3日

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  • Ming Che

摘要

This paper presents a visible light communication (VLC) prototype that repurposes commercially available off-the-shelf LED bulbs to provide both illumination and Internet connectivity. The system is implemented on a BeagleBone Black single-board computer, integrating a Linux-based network driver with a software-defined VLC transceiver and a custom analog front-end. In terms of architecture, it comprises a TCP/IP-compatible network protocol interface, programmable real-time unit-based baseband processing, and visible light transmission and reception using intensity modulation with direct detection. Experimental validation was conducted to evaluate the feasibility of this low-cost VLC system, which simultaneously provides illumination and data communication. The measured bandwidth corresponds to a physical-layer limit in the sub-hundred-kHz range, while loop-back testing confirmed stable IP packet delivery at a net data rate of approximately a few kbit/s. The results indicate a viable approach for simple signaling or short text exchanges in IoT-oriented scenarios, while offering cost-effective VLC deployment without altering existing lighting fixtures.